code: def send(self, tensor, dst_rank):
      raise NotImplementedError()
  
file_path: ray/python/ray/util/collective/collective_group/base_collective_group.py
imports: from abc import ABCMeta
  from abc import abstractmethod
  from ray.util.collective.types import AllReduceOptions, BarrierOptions, ReduceOptions, AllGatherOptions, BroadcastOptions, ReduceScatterOptions
label_desc: Use image node_id 13 for calling the BaseGroup obj's underlying member method code with example usage: obj.send(tensor, dst_rank) without return types